.banner {
    width: 1226px;
    height: 460px;
    position: relative;
}
.banner a img {
    width: 100%;
    height: 100%;
}

.banner-pointer {
    position: absolute;
    top: 50%;
    width: 40px;
    height: 70px;
    /*border: 1px solid;*/
    line-height: 70px;
    text-align: center;
    margin-top: -35px;
    cursor: pointer;
}
.banner-pointer .iconfont {
    font-size: 30px;
    color: #b8c3cb;
}
.banner-pointer:hover {
    background-color: rgba(0, 0, 0, .5);
}
.banner-pointer:hover .iconfont {
    color: #fff;
}
.banner-pointer-left {
    left: 234px;
}
.banner-pointer-right {
    right: 0;
}

.banner-dots {
    position: absolute;
    right: 30px;
    bottom: 30px;
    /*width: 50px;*/
    /*height: 30px;*/
    /*background-color: red;*/
}
.banner-dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: rgba(0, 0, 0, .4);
    margin: 0 4px;
    border: 2px solid rgba(255, 255, 255, .3);
    cursor: pointer;
}
.banner-dots .banner-dots-selected {
    background-color: rgba(255, 255, 255, .3);
    border: 2px solid rgba(0, 0, 0, .4);
}

.banner-menu {
    width: 234px;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    background-color: rgba(105, 101, 101, 0.6);
    padding: 20px 0;

}
.banner-menu-item {
    /*border: 1px solid;*/
    height: 42px;
    line-height: 42px;
    padding: 0 20px 0 30px;
    color: #fff;
    cursor: pointer;
}
.banner-menu li:hover {
    background-color: #ff6700;
}

.banner-menu li:hover .banner-sub-menu {
    display: block;
}
.banner-sub-menu {
    display: none;
    border: 1px solid #cccccc;
    background-color: #fff;
    width: 992px;
    height: 460px;
    position: absolute;
    top: 0;
    left: 234px;
}
.banner-sub-menu a {
    width: 25%;
    height: 16.666%;
    padding: 0 20px;
    /*background-color: orange;*/
}
.banner-menu .banner-sub-menu img {
    width: 40px;
    height: 40px;
    margin-top: 17px;
    margin-right: 12px;
}
.banner-sub-menu span {
    width: 154px;
    margin-top: 28px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}